Drawing-roll.



No. 683,3". Patented Sept; 24, 1901,

F. :4. mm.

DRAWING BOLL.

(Applica'iibn filed June 6, 1900.)

(No Model.)

m: mums PEYERS co., PHOTO-U010" wnsumc om n c,

Human STATES PATENT OFFICE.

FRANK M. MAROY, OF WORCESTER, MASSACHUSETTS, ASSIGN OR OF ONE- I-IALF TODRAPER COMPANY, OF PORTLAND, MAINE, AND I-IOPEDALE,

MASSACHUSETTS.

DRAWING-ROLL.

SPECIFICATION formingpart of Letters Patent No. 683,311, dated September24, 1901.

Application filed June 6, 1900. Serial N0. 19,209- (No model.) I

T0 on whom it may concern:

Be it known that I, FRANK M. MARCY, a citizen of the United States,residing at \Vorcester, county of 'Worcester, and Stateof Massachusetts, have invented an Improvement in Drawing-Rolls, of which thefollowing description, in connection with the accom pany ing drawing, isa specification, like letters on the drawing representing like parts.

This invention relates to drawing-rolls for spinning-frames and thelike, and more particularly to top rolls, which are usually made with ametal body and a covering of felt and leather. It is well known thatthese rolls wear very rapidly, and the re-covering is a Very large itemof expense, and it is my object to avoid this expense and produce a rollhaving a very durable wearing-surface, yet the full equivalent, so faras efficiency is concerned, of the well-known leather-covered roll infirst-class condition.

My invention comprises the roll and the process of treating the same toincrease its wearing properties and life, and the process is adapted toeither new rolls or worn ones, although particularly adapted to thelatter.

The drawing represents, in elevation and part section, a drawing-roll toclearly illustrate my invention.

The metal bodyot and leather cover I) therefore are and may be of usualor well-known construction.

In carrying out my invention I coat the leather cover with an enam elingcomposition, which produces a fine wear-resisting surface and greatlyenhances the life of the roll.

In conducting my experiments I have used a composition consisting of aviscous vehicle, a thickener, and a drier, and I have found that withboiled linseed-oil, lampblack, and japan, used as a vehicle, thickener,and drier, respectively, the following proportions produce good results:one-half pint boiled linseed-oil, lampblack enough to give theconsistency of thick cream thororoughly mixed with the oil, and threespoonfuls of japan or the same quantity of naphtha. The proportionsabove given may be varied according to circumstances.

The roll is placed in a naphtha solution to extract the oil or greasefrom the leather, and thereafter the enamel is applied.

Before applying the enamel I have found it desirable to apply shellac orthe like to the roll, and forconvenience the roll is placed on an arborand revolved in any suitable manner, shellac being applied by means of apiece of cloth pressed against the revolving surface of the roll, anyrough places on the leather being thereby smoothed down and giving agood even surface of the enamel. The enamel is then applied to the rollin any suitable or convenient manner, as by a brush or pad, tothoroughly impregnate the rollcover, and thereafter the roll is bakedfor, say, two and one-half hours at a temperature of about 150Fahrenheit, and the covering 1) of the roll will present afine, smooth,and durable coating or finish, (indicated at c in the drawing.)

My invention is not restricted to the precise proportions ormanipulations herein set forth, and, so far as I am aware, it is broadlynew to apply enamel to the cover of a drawing-roll.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. As an article of manufacture, a drawing-roll having a leather coverprovided with an enamel finish.

2. As an article of manufacture, a drawin g-roll having a leather covershellacked and impregnated with an enamel composition.

3. As an article of manufacture, a leathercovered drawing-roll having anenamel composition baked thereon.

4. As an article of manufacture, a drawing-roll having a leather coverimpregnated with a mixture of linseed-oil, lampblack and a drier, asjapan.

5. The process of finishing leather-covered drawing-rolls which consistsin applying to the leather an enamel, and baking the same.

6. The process of finishing leather-covered drawin g-rolls whichconsists in applying shellac to the leather, coating with an enamel, andbaking the same.

7. The process of finishing leather-covered drawing-rolls which consistsin applying to the leather a composition containing a viscous vehicle, athickener, and a drier, and thereafter subjecting the same to a bakingtemperature. I

8. The process of finishing leathercovered drawing-rolls which consistsin removing the oil or grease from the leather, applying a compositionof japan, lampblack and linseedoil thereto, and thereafter baking theroll.

9. The process of finishing leather-covered drawing-rolls which consistsin removing the oil or grease from the leather, applying a compositionof japan lampblack and linseed-oil thereto, and thereafter subjectingthe roll to a baking temperature of substantially 150 10 Fahrenheit.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

FRANK M. MARCY.

WVitnesses:

H. N. PARKER, A. R. BRIGHAM.

